README: Introduce spec for "base91s" encoding

We have no implementations of this yet.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/README b/README
index c27375ab7bf563702272c62870e4d51222518331..c05dc444721daed79f5e5644d8a610b15a97edf9 100644 (file)
--- a/README
+++ b/README
@@ -193,6 +193,17 @@ Usage: secnet [OPTION]...
       --help              display this help and exit
       --version           output version information and exit
 
       --help              display this help and exit
       --version           output version information and exit
 

+* base91s
+
+secnet defines a variant of the base91 encoding `basE91', from
+ http://base91.sourceforge.net/
+
+base91s is the same as baseE91 except that:
+ - in the encoded charset, `"' is replaced with `-'
+ - spaces, newlines etc. and other characters outside the charset
+    are not permitted (although in some places they may be ignored,
+    this is not guaranteed).
+

 * secnet builtin modules
 
 ** resolver
 * secnet builtin modules
 
 ** resolver